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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Implies the amount of estrogen production






2. (LH) causes female's egg to break (her period)






3. Failure to have one testis (gonad) to descend






4. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






5. What helps regulate spermatogenesis?






6. (LH) causes female's egg to break (her period)






7. Check feet and legs - look for masculine traits in build such as crest and muscling






8. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






9. 147 days






10. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






11. Sperm production






12. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






13. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






14. Look for infection - split - and rupture of the penis






15. Animals which have only one estrous cycle (ex: dog - fox)






16. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






17. Superior genes are _______ to multiply






18. When are dairy cattle dehorned?






19. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






20. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






21. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






22. 10-37 (21) days






23. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






24. When are dairy cattle dehorned?






25. 30-38 hours after estrus cycle begins






26. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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27. Why Dairy calves are fed powdered milk.






28. 45-60 days after breeding; re-breed as required






29. 336 days






30. Not under a timeline - cow can not be sold as steak






31. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






32. Parturition is controlled by...






33. Days which have increasing daylight hours

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34. The more stressed out the male is - the less sperm he is going to produce






35. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






36. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






37. 14-19 (17) days






38. 1. brain function - 2. blood flow - 3. willing female






39. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






40. Milk is 15% ________ and 85% __________.






41. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






42. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






43. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






44. When are steers and heifers weaned from bottle feeding?






45. Failure to have one testis (gonad) to descend






46. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






47. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






48. Birthing process (termination of gestation)






49. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






50. Contains and regulates the temp of the testes for sperm production